The real dolphin sound must meet the following three requirements at the same time:
The vocal cords do not vibrate when pronouncing the first item (if the vocal cords vibrate, at least the vocal cord muscles do not exert force at all).
The second item is non-lip-tooth-tongue sound (if blowing with lips is excluded)
The third frequency exceeds 2000HZ(2000HZ is the lowest sound of dolphins).
Summarize the training methods:
First, the bubble sound is the main sound. When you make a sound, your mouth will naturally open wide and you don't have to show your teeth. When you make a bubble sound, you feel the phoneme move up, and the Adam's apple will naturally move up. Don't pay attention to the size of bubbles, but pay attention to increasing the frequency of bubbles. To feel the force of pharyngeal muscles, the smaller the vibration of touching vocal cords, the closer to the correct method. If you feel sore after speaking, it means that the method is wrong and you can't continue practicing. Pay attention to the pharyngeal cavity when you speak, thinking about shrinking the pharyngeal wall. It's wrong to keep thinking about choking.
The vocal position of dolphin sound is felt in the pharynx above the vocal cords, and it is blurred up and down. In addition, don't use force on your tongue, and pay attention to moving it up in the vocal position. Dolphin sound has a medium volume, so don't shout when practicing. When making dolphin sounds, the position of the larynx is naturally raised, but don't forcibly lift the Adam's apple.
When making dolphin sounds, the key is lung capacity. I suggest you take part in more sports, especially long-distance running.
Many stars exercise their vital capacity through fitness before the concert.